Calidris alba Grid 2, N of Smithsonian building, 4 km S of NARL, Pt. Barrow, Alaska 14 June ♂ display around in (8,1) toward (9,3) stake. (1st mound in that direction). 1157-8T came toward me whootings pursuing a few feet over tundra. only once he reached area in front of me did ♂ peetoral their popular head up + become visible. In the display flight as he flies very low - is flapping within 2ft of ground. He then stops flapping + rises, gliding with tail fanned. as he does this he shifts angle of tail around long axis of body, presumably in some claimant for steering. [illegible] although I will glide several times in one flight, I've not yet seen their boot more than once ♂ hoot only once (not necessarily first glide). whenever I have watched a ♂ glidi several times over one place + they go to that spot, I have invariably found a ♂ peetoral there. this ♂ has another mound near to the 1st between (8,0) to (8,1) Evening 2135. 11 ♂♂ flying over grid. 2130 found ♂ peetoral observed this area an activity in (8,1) region. PGC+T had placed trap on mound at 2115. [unsuccessful]. Could not find ♂ for 15 minutes when it flew past me from direction of (7,4) going toward (7,9) following ♂ very closely. Hooting, loaded by ♂; did tail up strut display with aggravated churring sounding like Donald duck. The normal chatter developed into this pronounced squawking - neck puffed out. flashed wing up + the flew ~100 m E. [illegible] then left 7min later. As he flew passed me [he had been pursuing the ♂ fervently] I suddenly noticed